Application of alloy steel tee

　　The intersection of weld line, the current is mainly formed by manual cutting or plasma cutting, the machining accuracy is not high, the groove angle is small, the improper selection of alloy steel tee, resulting in lack of penetration. Another major reason for welding High Quality Forging Alloy Steel Tee is the process of material, the wrong branch outside export processing groove, welding pipe directly in charge on the lap. The strength of the weld is reduced if the weld is not penetrated. For the pipeline conveying corrosive medium, the heat affected zone of the weld will be thinned with the increase of the production cycle, resulting in the leakage of the weld. The cause of gas hole and slag inclusion is that the oil, rust, water and other impurities in the groove before and in the vicinity of the welding are not cleaned, and the skin of the traditional Chinese medicine is not cleaned in the welding process. In addition, the welding speed is too fast and the welding current is too small, which speeds up the cooling rate of the weld.